Seat-padding machine



Aug. 19, 1924..

'A'. s. MITCHELL SEAT PADDING MACHINE Filed Aug. 23, 1923 2 Sheets-Sheet 1 zz'z INVENTOR ATTORNEY Aug. 19, 1924.

A. S. MITCHELL SEAT PADDING MACHINE Filed Aug. 23 1923 2 Sheets-Sheet. 2

INVENTOR fill/57F? 5. M/TC'f/[IL ATTORNEY Patented Aug, .19, 1924.

umranflsmjras PATENT- oFFicE.

anrrsraa s." nzrcnnrn or omann, cauronma, ASSIGNOB r camonm comm oroAKLAnn, CALIFORNIA, a conronarron or canrronma.

snA'r-rannmo macn'mn Application filed August as, 192:. Serial 8o. erases.

To all whom it may concern Be'it known that I, ALIJSTER S. Mrrcnrerm, acitizen of'the Unitedstat'ea residing at Oakland, in the county of Alameda and a State of California, have invented certain new and useful Improvements in SeatrPadding Machines, of which the followmg is a specification. My invention "is an improved padd ng 10: machine, particularly applicable for placing the padding into the pockets of anautomobile seat back or similar upholstery. .1

The object of my invention is to provide a machine which is simple in constructio 1 and'the operations of which can he rea y,

watched by the operator and corrected if necessary.

.' Another object of my invention is to pro;

vide a machine which is eflicient and rapid in operation. In the annexed-drawing I have illustrated the preferred form of my invention, but it may also be embodied in other forms and in this application I desire to cover my invention in whatever form it 26 ma be embodied.

proved padding machine.

Figure 2 is a sectional view taken on the line 2-2 of Figure 1.

' line 3-3 of Figure 1.

Figure 4 is-a fragmentary end new of the 85 ing-my invention includes first a drum 1, which is journaled upon a hollow shaft 2 theshaft being supported on'stands 3 and 4. The periphery. of the drum 1 is formed. of a wire screen. in whicha pluralit of grooves 5 (arcuate in cross section) are ormed. Slats 6 are arrangedi longitudinally in the drum 1 between each pair of the grooves 5 which serve to form chambers 7 under each groove and to reinforce the-wire screen.

* A housing 8 is positioned within the drum 1 at the top thereof, and extends under several of the chambers 7. This housin is supported on a pipe 9 which extends into the hollow shaft 2. The shaft 2 is attached to a Q suitable source of =vacuum (not shown) through which shaft and pipe 9 the housing 8 is--evacuated.the purpose of which will be described, l ter.

A nozzle .3 is p 'tioied above higure 1 is a side elevation of my im'-- 1, which is evacuated through a pipe 11 extending to a suitable source of vacuum.

An automobile sea'tback is-formed of two strips of material which are sewed together at intervals to form the padding pockets.

The outer strip isformed of an impervious material such as leather while the inner strip is usiially jute, muslin, or a similar material.

' In 0 eratin' my machine I propose to placet e leat er side downwards towards Y the drum 1, and the jute towards the nozzle:

10. The back may be fed on to the-drum 1 from a table '11 positioned adjacent said .drum and substantially-.the same height.

The grooves 5 are about the same size. and

configuration as the stuffed pockets of the back, consequently as the back is fed upon the drum the leather side will be drawn downwardly into the pockets by reason of the vacuum in the housing 8, and the more porous top piece of jute will be drawn upwardly against the nozzle 10, thus holding gigocket open for the reception of-the pad- Y A filling tube 12 ismounted in alignment with the top'of the drum 1, and is reciprocally mounted upon arod 13, which is supported on a standard 14 and on the drum 8.0 Figure 3 is a sectional view taken onthe supporting frame 3.' The padding is formed 1n a continuous strip and is preferably rolledon a reel asshown at'15. This padding is d J threaded into the needle 12, and as said nee- Referring more particularly to the drawen age the padding which projects from the an of said tube and thus holds it within the pocket of the backwhen the tube is withdrawn. Cam teeth 19 are formed on the drum 1, which enga e the finger 16 and raise it off ofthe pad ing when the drum is rotated.

tube V 12 passes under the finger 16, said finger will After the when is withdrawn a knife 20 front of the tube; This knife is mounted upon a vertical rod 21, and the operation thereof will" be subsequently described.

A cam wheel 22 is .journaled upon a shaft .is caused to descend and cuts-the paddingin 23 and extends at rightangles to i .2 p I I 1,505,404

of the drum 1. The shaft is; driven through a pulley 24, which is rotated by any suit-- able source of power, and is journaled in bearings and 26. The wheel 22 is caused .block 31 on the floor, and a pin 32 in the tube 12 slides in a slot 33 in the end of said armwhen it is swung. The arm is caused to swing by a link 34 pivoted thereto and pocket.

whichextends into a cam groove 35 in the ,wheel 22. This groove moves the link inwardly at the proper time which swings the arm 30 and moves the; tube 12 into the The. knife 20 is depressed by a link 36 which travels 'in a'cam groove37 in the wheel 22 and which is pivoted to an arm 38 pivoted tothe rod 21. A link 39 extends from the knife 20 to the arm 38, thus causing the knife to lower when the arm is actuated.

The drum-1 is caused to rotate by-a single tooth 40on the periphery of the wheel 22.

which engages teeth 41 in the face of the drum I. At each revolution of the wheel 22, the drum 1 is moved forward a distance df one. tooth 41, the tube 12 is 'moved fofward and back and the knife 20 is raised and lowered.

Having described my invention, I claimi 1. A padding machine cpmprising a drum, vacuum means within said drum wherebythe back to be padded is held on the drum a filling tube reciprocally mounted adjacent said drum, means to reciprocate said tube, and means to rotate saiddrum. 2. A padding machine '-comprising a drum, vacuum means within said drum whereby the back to be padded is held on the drum, a-vacuum nozzle above said drum,

"adapted "to assist in opening the padding back, a filling tube reciprocally mounted adjacent said drum, means to reciprocate said tube, and means to rotate said drum.

3. A padding machine comprising a drum, said 'drum having grooves formed thereon,

- means to separate the front and rear faces of the back to be padded, a tube reciprocally mounted adjacent said di'u'm, said tube'being adapted to carry the padding and means to reciprocate said tube.

4. A padding machine comprising a drum, said drum having grooves formed thereon, means within and without the drum to separate the front and rear faces of the back to be padded, a tube reciprocally mounted adjacent said drum, said tube being adapted to carry the padding and means to reciprocate said'tube.

5. A padding machine comprising a drum, wire screen forming the periphery of said drum, grooves formed in said wire screen, vacuum means within said drum, a

tube. reciprocally mounted adjacent shid drum, said tube being adapted to carrythe padding, and means to reciprocate said tube.

6. A paddi g machine comprising a drum,

said drum having grooves formed thereon, vacuum means within said drum, a tube reciprocally mounted adjacent said drum, said tube being adapted to carry the padding and means to reciprocate said tube, and means to rotate said drum when the tube has been reciprocated.

7. A padding machine comprising a drum, said drum having grooves formed thereon, vacuum means within said drum, :1

tube reciprocally mounted adjacent said drum, said tube being adapted to carry the padding and means toreciprocate saidtube, and means to notatesaid drum, when the tube has been reciprocated, a fingermountetl at the rear of said drum under which said tube is adapted to pass and spring means tourge said finger downwardly.

8. A padding machine comprising a drum, said drum having grooves formed thereon, a tube reciprocally mounted adjacent said drum, said tube being adapted to carry the padding and means to reciprocate said tube, and automatic means to rotate said drum when the tube has been reciprocated, a finger mounted at the rear of said drum under which said tube is adapted to pass andspring means to urge said finger downwardly, cam teeth formed on said drum and adapted to raise said finger as the drumis rotated.

9. A padding machine comprising a drum adapted to carry onarticle having pleats, a filling tube reciprocally mounted adjacent said drum, means to reciprocate said tube into and out of said pleats and means to rotate said drum.

10. A padding machine comprising a drum adapted to carry an article having pleats, said drum having grooves formed thereon in which said pleats are nested, a

a tube reciprocally mounted adjacent said drum, said tube being adapted .to carry thepadding and means to reciprocate said tube 7 into and out of said pleats.

'11. A padding machine comprising a drum adapted to carry an article having pleats, a filling tube reciprocally mounted adjacent said drum, means to periodically reciprocate said tube into and out of said pleats and means to rotate said drum before each fonwardmovement of said tube.

12. A padding machine comprising a drum adapted to carry an article having pleats, said drum having grooves formed thereon in which said pleats are nested, a

filling tube mounted adjacent said drum, means to periodically reciprocate said tube into and out of said pleats and means to rotate said drum so as to bring an unfilled pleat into alignment .with said tube.

- 13. A p'adding machine comprising a drum adapted= carry an article having. sleats,,a filling tube mounted adjacent said rum, means to reciprocate said tube parallel to the axis of said drum and means to rotate said drum.

pleats, wire screen'forming the periphery of 14. A padding machine comprising a drum adapted to carry an article having said drum, means within-the drum to .draw the lower side of said pleats against said screen, a tube mounted adjacent the periph- I lower side of the article being padded against said screen. v

16. In a padding machine, adrum, awire screen forming the periphery .of said drum,"

said drum having grooves formed therein, and means within the drum to draw the lower side of the article. being padded against the \t ire screen and into the grooves, v. 17. A. pa dding 'machine comprising a drum adapted to carry apleated article on w thdrawn from the pleat.

"the periphery thereof, .a tube adapted to reciprocate into and outcf the pleats of said article, and means whereby the article is held on the drum while the tube is being A padding machine comprising a fdrum adapted'to carry an article having pleats, a tube mounted adjacent said-drum,

tube being adapted to carry the padding, means to reciprocate said tube into and out of said pleats, means to rotate said drum when the tube has been reciprocated, a'finger mounted at the rear of said drum, means to urge said finger downwardly as the tube is reciprocated so as to hold the padding and means to raise said finger as the drum is rotated.

-19. A padding machine comprising a' drum adapted to carry an article having pleats, said drum having grooves formed 'finger downwardly, as the tube is reciprocated so as to hold the padding and means to raise said finger as the drum is rotated.

20. A, padding machine comprising a drum adapted to' carry an article having pleats, said drum having grooves formed therein-in which=said pleats are nested, a tube mounted adjacent said drum, said tube being adapted to carry the padding, means to reciprocate said tube into and out of said pleats, automatic means to rotate said drum when the tube has been reciprocated, a finger mounted at 'the rear of said drum, means to urge said finger'downwardlv as the tube is reciprocated so as to hold the padding and means to raise said finger as the drum is rotated.

In testimony whereof I afiix my signature.

ALLISTER S. MITCHELL. 

